|Publication number||US5284311 A|
|Application number||US 07/871,911|
|Publication date||Feb 8, 1994|
|Filing date||Apr 21, 1992|
|Priority date||Oct 29, 1990|
|Publication number||07871911, 871911, US 5284311 A, US 5284311A, US-A-5284311, US5284311 A, US5284311A|
|Inventors||Thomas R. Baer|
|Original Assignee||Newco, Inc.|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (35), Referenced by (22), Classifications (12), Legal Events (15)|
|External Links: USPTO, USPTO Assignment, Espacenet|
This is a continuation of application Ser. No. 07/605,530 filed Oct. 29, 1990 now abandoned.
This invention relates to hardware for adjustably connecting horizontal timbers to vertical timbers in general and to hardware for assembling shelf and bench support structures in particular.
Adjustable shelving structures are used to store a variety of equipment and materials i a compact and organized fashion. As the storage needs of the business or home user of the shelving changes, the positioning of the shelves may be adjusted.
One type of adjustable shelf structure has horizontal shelves with protruding hooks which engage slots in vertically mounted racks. Such cantilevered structures can support only light loads. Hook and rack structures may be fabricated entirely of metal however, all-metal shelving structures which are sturdy enough to support heavy loads may be costly to manufacture and ship because of the great weight of the metal components.
What is needed is an assembly of hardware parts that would enable the fabrication of shelving structures from easily available dimensions of timber which could be assembled with minimal skill yet which would be sturdy enough to support heavy loads.
The hook bracket for adjustably mounting a timber member on an upright slotted rack of this invention has a U-shaped band with two vertical arms adapted to be fastened to and lie along opposed surfaces of a horizontal timber member, the arms each lying substantially in the plane of the adjacent surfaces of the attached timber member. The arms are joined by a horizontal base, the horizontal base underlying a lower surface of an attached timber member in supporting relation. Each arm has a portion defining a fastener hole which permits penetration by rigid fasteners substantially perpendicular to the plane of the vertical arm for the purpose of rigidly fastening a timber member within the arms of the bracket. An L-shaped hook extends outwardly and downwardly from one arm and is in substantially the same plane as the arm. The hook is adapted to engage in a slot in the rack to support the timber member in fixed relation to the rack. A Preferred form of the bracket has an end plate attached to the band Perpendicular to the band so as to resist movement of the timber member parallel to the arms and in the direction of the hook. The bracket hook has a portion adapted to engage a slot in the rack which is preferably of increasing thickness so as to permit a wedging of the hook into the slot.
A kit for assembling timber members into a support structure has at least two hook brackets and two racks having a plurality of vertically spaced slots with fastener openings to permit the mounting of the rack to the face of a timber beam. The kit may also have a metallic cross bracing for bracing vertical timber beams against one another. Additionally, the kits may have brace beams tying the vertical timbers together. A frame structure utilizing the hardware kit of this invention has four vertical timber members positioned at the corners of a rectangle and racks having a plurality of vertically spaced slots. A rack is mounted to a vertical face of each upright member to form two pairs of racks. The frame structure has two horizontal timber members and four hook brackets. The hook brackets are mounted to the ends of the horizontal timber members by fasteners inserted in the fastener holes. The hook brackets on the left ends of the horizontal beams have leftwardly extending hooks which engage the slots of one of the racks and the hook brackets on the right sides of the horizontal members have rightwardly extending hooks which engage the rack facing the left rack so as to maintain the horizontal members in a perpendicular attitude with respect to the vertical members.
It is an object of this invention to provide a hook bracket for adjustably mounting a horizontal timber member to a vertical rack.
It is also an object of this invention to provide a hardware kit for assembling a frame structure from standard size lumber.
It is a further object of this invention to provide a sturdy adjustable shelf structure.
Other objects, features, and advantages of the present invention will be apparent from the following specification when taken in conjunction with the accompanying drawings.
FIG. 1 is an exploded isometric view of the hardware kit of this invention in conjunction with a horizontal and two vertical timber members.
FIG. 2 is a side elevational view of a left hook bracket of this invention.
FIG. 3 is a front view of the hook bracket of FIG. 2.
FIG. 4 is a top view of the hook bracket of FIG. 2.
FIG. 5 is a fragmentary front elevational view of an assembled support structure of this invention.
FIG. 6 is a cross-sectional view of the hook bracket of this fastened to a horizontal timber taken along section line 6--6 of FIG. 5.
FIG. 7 is a cross-sectional view of the L-shaped rack of this invention taken along section line 7--7 of FIG.5.
FIG. 8 is a cross-sectional view of the L-shaped of this in taken along section lines 8--8 of FIG. 5.
FIG. 9 is an isometric view of a shelf support structure utilizing the hardware kit of this invention.
FIG. 10 is an isometric view of a support bench structure utilizing the hardware kit of this invention.
Referring more particularly to FIGS. 1-10 wherein like numbers refer to similar parts, a left hook bracket 20 is shown in FIGS. 1-5. The right hook bracket 22 is a mirror image of the left hook bracket 20 and is identical in all other respects. The hook brackets 20, 22 are metal, and are preferably formed from a single sheet of material such as 18 gauge galvanized steel. The sheet metal hook brackets 20, 22 have a U-shaped band 24 with a horizontal base 26 which joins two upwardly extending vertical arms 28. The arms 28 of the band 24 are sufficiently far apart to snugly accept a standard sized horizontal timber member 30 which will preferably be a commercially available 2×4 timber. Each arm 28 of the band 24 has at least one and preferably two fastener holes 32. The fastener holes 32 on each arm 28 are vertically spaced one above the other. Tee fastener holes 32 are adapted to permit the insertion of fasteners 34 which may be nails or preferably self-drilling screws. To avoid projecting screw heads, each fastener hole may be surrounded by a projecting crown 36, with the depressed center of the crown 36 forming the fastener hole 32 as best shown in FIG. 6. The fastener holes 32 are placed on each arm 28 and staggered as best shown in FIG. 6 such that a fastener 34 when inserted through one hole 32 parallel to the base 26 will not directly oppose any other fastener.
One or preferably two L-shaped hooks 38 extend outwardly from one arm 28 and are in substantially the same plane as the arm.
Each hook 38 has a downwardly extending engaging portion 40 which is adapted to engage in a slot 42 formed in a vertically mounted rack 44. The slots 42 are formed in the rack 44 by metal bands 46 which protrude from the rack. The racks have depressed fastener holes 45 for attaching the rack to a vertical timber or 2×4 54. The engaging portions 40 are tapered so that they may be wedged in the slots 42. Protrusions 43 are formed in the engaging portions 40 to create a thicker area to wedge within the slot 42.
Each hook bracket 20, 22 is preferably provided with an end plate 48 as best seen in FIGS. 3 and 4. The end plate is attached to the vertical arm 28 of the U-shaped band 24 opposite the hooks 38. The end plates 48 act as positioning guides when the horizontal 2×4s 30 are positioned within the hook brackets 20, 22. By abutting the horizontal 2×4 30 against the end plate 48 each hook bracket 20, 22 may be accurately positioned with respect to the end of the horizontal 2×4 30.
As shown in FIGS. 1 and 5 a horizontal 2×4 30 may be securely and adjustably attached to two vertically mounted racks 44 by attaching a left hook bracket 20 to the left side of the horizontal 2×4 30 and attaching a right hook bracket 22 to the right side of the horizontal 2×4 30. The fasteners 34 are inserted through the fastener holes 32 in the hook brackets 20, 22 as shown in section in FIG. 6. The hooks 38 of the hook brackets 20, 22 are then inserted within the slots 42 of the racks 44 at a selected height.
The vertical L-shaped racks 44 as shown in FIGS. 7 and 8 are attached to the vertical 2×4s by means of fasteners 34 inserted through fastener holes 45 in the rack 44. The rack has slots 42 formed by bands 46 which protrude out from one planar face 47 of the L-shaped racks 44.
The hook brackets and racks may be used to construct frame structures of a variety of designs. A shelf structure 50 is shown in FIG. 9 and a bench structure 52 is shown in FIG. 10. The shelf structure 50 of FIG. 9 is constructed by assembling four upright 2×4s 54 into two side frames 56 by nailing brace beams 58 between each pair of upright 2×4s at the top and the bottom of each side frame 56. The beams 58 may be metal plates but are preferably wooden 2×4s as shown. The racks are mounted on the upright 2×4s 54 to form two pairs of racks whose slots face each other. Left and right hook brackets 20, 22 are fastened to the horizontal 2×4s 30 to form hooked timbers 60. Hooked timbers 60 are inserted in the slots 42 of the racks 44 at the same level on each of the four upright 2×4s 54, beginning with a set of hook timbers 60 positioned at the bottom of the shelf structure 50 and ending with a set of hooked timbers 60 at the top of the shelf structure. Pairs of hooked timbers 60 may be positioned at any desired level along the rack to form supports for a shelf (not shown) which may be laid over the pair of hooked timbers 60. To provide additional stiffness to the structure, and to resist shear loads metallic cross members 62 may be attached to the side frames 56 between two upright 2×4s 54.
The bench structure 52 of FIG. 10 may be constructed in the similar manner. The horizontal brace beams 158 in the bench 52 are shown formed from standard wooden 2×4s. A greater length of horizontal 2×4 may be achieved by abutting two hooked timbers 60 to an upright 2×4s 64 which has two racks 44 mounted on it.
A kit for assembly into a frame support structure would contain at least two racks 44 and a left hook bracket 20 and a right hook bracket 22. Cross members 60 and brace beams 58 might also be included in such a kit. By using one or more kits a builder may construct from standard sized 2×4s a wide variety of structures.
It is understood that the invention is not confined to the particular construction and arrangement of parts herein illustrated and described, but embraces such modified forms thereof as come within the scope of the following claims.
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|DE10119038C1 *||Apr 18, 2001||Jun 6, 2002||Friedrich Knapp||Two-part fitment, for building in earthquake threatened areas, has plate-shaped halves with bent and cropped ends with slots for fixing screws with locking flap on one fitment folding round axis to enclose screw head on other fitment half|
|WO2001096776A1||Jun 4, 2001||Dec 20, 2001||Frank Prochiner||Connecting element for mechanically connecting components|
|WO2002084129A2 *||Apr 18, 2002||Oct 24, 2002||Knapp Friedrich||Fitting for connecting two components|
|WO2015028653A1 *||Sep 1, 2014||Mar 5, 2015||Tegometall International Ag||Mounting hook for a racking element|
|U.S. Classification||248/243, 403/254, 211/191, 403/381, 5/296, 248/224.7, 248/247|
|Cooperative Classification||A47B57/402, Y10T403/7094, Y10T403/4668|
|Jun 19, 1992||AS||Assignment|
Owner name: NEWCO, INC. A CORP. OF WISCONSIN, WISCONSIN
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:BAER, THOMAS R.;REEL/FRAME:006144/0815
Effective date: 19920420
|Jan 27, 1995||AS||Assignment|
Owner name: FIRST NATIONAL BANK OF CHICAGO, THE, ILLINOIS
Free format text: SECURITY INTEREST;ASSIGNOR:NEWCO, INC.;REEL/FRAME:007288/0446
Effective date: 19950119
|Mar 20, 1997||AS||Assignment|
Owner name: NEWCO, INC., WISCONSIN
Free format text: RELEASE AND REASSIGNMENT OF PATENTS;ASSIGNOR:FIRST NATIONAL BANK OF CHICAGO, THE;REEL/FRAME:008454/0720
Effective date: 19970311
Owner name: FLEET NATIONAL BANK, MASSACHUSETTS
Free format text: SECURITY AGREEMENT;ASSIGNOR:NEWCO, INC.;REEL/FRAME:008423/0519
Effective date: 19970313
|Aug 7, 1997||FPAY||Fee payment|
Year of fee payment: 4
|May 11, 1999||AS||Assignment|
Owner name: PLAYCORE WISCONSIN, INC., WISCONSIN
Free format text: CHANGE OF NAME;ASSIGNOR:NEWCO, INC.;REEL/FRAME:009942/0032
Effective date: 19990204
|Aug 4, 2000||AS||Assignment|
|Sep 8, 2000||AS||Assignment|
|Apr 24, 2001||AS||Assignment|
|May 10, 2001||AS||Assignment|
|Sep 4, 2001||REMI||Maintenance fee reminder mailed|
|Feb 8, 2002||LAPS||Lapse for failure to pay maintenance fees|
|Apr 9, 2002||FP||Expired due to failure to pay maintenance fee|
Effective date: 20020208
|Sep 5, 2003||AS||Assignment|
|Aug 18, 2004||AS||Assignment|
|Aug 20, 2004||AS||Assignment|